While the brow can be lowered, your problem is more of a muscular imbalance. Muscles lower the brow (corrugated, procerus, depressor), and muscles raise the brow (frontalis). The basics for this were worked out in 1852 by Duchenne. There is an "agonist/antagonist" relationship with these muscles. In your case the dominance of the muscles that "scrunch" the medial brows down are responsible for your brow position not being straight and the "angry" look that you have. One brow is also higher than the other. That may be a natural imbalance, or you may be a "unilateral brow lifter". This needs to be taken into consideration. It is essential to evaluate you "in motion". It is probable that an endoscopic approach will work for you. The brow can be "shaped". You can simulate this with Botox injections into the proper muscles. The Botox may not give the exact results, but you might get an idea of the changes.